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  <div class="section" id="module-nis">
<span id="nis-interface-to-sun-s-nis-yellow-pages"></span><h1>35.12. <a class="reference internal" href="#module-nis" title="nis: Interface to Sun's NIS (Yellow Pages) library. (Unix)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">nis</span></code></a> --- Interface to Sun's NIS (Yellow Pages)<a class="headerlink" href="#module-nis" title="永久链接至标题">¶</a></h1>
<hr class="docutils" />
<p>The <a class="reference internal" href="#module-nis" title="nis: Interface to Sun's NIS (Yellow Pages) library. (Unix)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">nis</span></code></a> module gives a thin wrapper around the NIS library, useful for
central administration of several hosts.</p>
<p>Because NIS exists only on Unix systems, this module is only available for Unix.</p>
<p>The <a class="reference internal" href="#module-nis" title="nis: Interface to Sun's NIS (Yellow Pages) library. (Unix)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">nis</span></code></a> module defines the following functions:</p>
<dl class="function">
<dt id="nis.match">
<code class="descclassname">nis.</code><code class="descname">match</code><span class="sig-paren">(</span><em>key</em>, <em>mapname</em>, <em>domain=default_domain</em><span class="sig-paren">)</span><a class="headerlink" href="#nis.match" title="永久链接至目标">¶</a></dt>
<dd><p>Return the match for <em>key</em> in map <em>mapname</em>, or raise an error
(<a class="reference internal" href="#nis.error" title="nis.error"><code class="xref py py-exc docutils literal notranslate"><span class="pre">nis.error</span></code></a>) if there is none. Both should be strings, <em>key</em> is 8-bit
clean. Return value is an arbitrary array of bytes (may contain <code class="docutils literal notranslate"><span class="pre">NULL</span></code> and
other joys).</p>
<p>Note that <em>mapname</em> is first checked if it is an alias to another name.</p>
<p>The <em>domain</em> argument allows overriding the NIS domain used for the lookup. If
unspecified, lookup is in the default NIS domain.</p>
</dd></dl>

<dl class="function">
<dt id="nis.cat">
<code class="descclassname">nis.</code><code class="descname">cat</code><span class="sig-paren">(</span><em>mapname</em>, <em>domain=default_domain</em><span class="sig-paren">)</span><a class="headerlink" href="#nis.cat" title="永久链接至目标">¶</a></dt>
<dd><p>Return a dictionary mapping <em>key</em> to <em>value</em> such that <code class="docutils literal notranslate"><span class="pre">match(key,</span>
<span class="pre">mapname)==value</span></code>. Note that both keys and values of the dictionary are
arbitrary arrays of bytes.</p>
<p>Note that <em>mapname</em> is first checked if it is an alias to another name.</p>
<p>The <em>domain</em> argument allows overriding the NIS domain used for the lookup. If
unspecified, lookup is in the default NIS domain.</p>
</dd></dl>

<dl class="function">
<dt id="nis.maps">
<code class="descclassname">nis.</code><code class="descname">maps</code><span class="sig-paren">(</span><em>domain=default_domain</em><span class="sig-paren">)</span><a class="headerlink" href="#nis.maps" title="永久链接至目标">¶</a></dt>
<dd><p>Return a list of all valid maps.</p>
<p>The <em>domain</em> argument allows overriding the NIS domain used for the lookup. If
unspecified, lookup is in the default NIS domain.</p>
</dd></dl>

<dl class="function">
<dt id="nis.get_default_domain">
<code class="descclassname">nis.</code><code class="descname">get_default_domain</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#nis.get_default_domain" title="永久链接至目标">¶</a></dt>
<dd><p>Return the system default NIS domain.</p>
</dd></dl>

<p>The <a class="reference internal" href="#module-nis" title="nis: Interface to Sun's NIS (Yellow Pages) library. (Unix)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">nis</span></code></a> module defines the following exception:</p>
<dl class="exception">
<dt id="nis.error">
<em class="property">exception </em><code class="descclassname">nis.</code><code class="descname">error</code><a class="headerlink" href="#nis.error" title="永久链接至目标">¶</a></dt>
<dd><p>An error raised when a NIS function returns an error code.</p>
</dd></dl>

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